Opera VPN and "routing and remote access" service.

Wonder if any one can answer my question. For some reason, my opera VPN was not working today. Kept saying "connecting". Searched the web and found a recommended fix of activating the "routing and remove access service" - (RRAS). After doing this, VPN started working. Not sure what RRAS is for but I had it before when I was working to connect to my office. Any reading the description, that is what the definition appears to be - allow client/server connections. So does Opera really nead this? On my wife's computer, I turned on VPN and it connected. Checked the RRAS service on her computer and it was disabled. But I turned it on any how.